Title:
【発明の名称】ジアルキルカーボネートを製造するための方法と触媒
Document Type and Number:
Japanese Patent JP2002523477
Kind Code:
A
Abstract:
A process for producing dialkyl carbonates, such as dimethyl carbonate, from the reaction of a primary alcohol with urea in the presence of a novel organotin catalyst complex with a high boiling electron donor compound acting as solvent which are (1) materials having the general formula RO[CH2(CH2)kCH2O]mR, wherein each R is independently selected from C1-12 alkyl, alkaryl or aralkyl moieties, k=0,1, 2 or 3 and m=1, 2, 3, 4 or 5 and (2) bidentate ligand which form 1:1 bidentate and/or 1:2 monodentate adducts with R'2SnX2(X=Cl, R'O, R'COO or R'COS), R'3SnX, R'SnO, Ph3-nR'SnXn or Ph4-nSnXn (wherein R'=CqH2q-1n=0, 1 or 2 and q=2 1 to 12) and mixtures thereof, such as materials having the general formula RO[CH2(CH2)xCH2O]mR, wherein each R is independently selected from C1-12 alkyl, alkaryl or aralkyl moieties, k=0,1, 2 or 3 and m=1, 2, 3, 4, or 5.
Inventors:
Ryu, Jay Young
Application Number:
JP2000567303A
Publication Date:
July 30, 2002
Filing Date:
August 10, 1999
Export Citation:
Assignee:
Catholic Distillation Technologies
International Classes:
B01D3/32; B01J31/12; B01J31/16; B01J31/22; C07C68/00; C07C69/96; (IPC1-7): C07C68/00; B01J31/22; C07C69/96
Domestic Patent References:
| JPH08198815A | 1996-08-06 | |||
| JPH0753470A | 1995-02-28 | |||
| JPH0892167A | 1996-04-09 | |||
| JPS59130239A | 1984-07-26 | |||
| JPS55102542A | 1980-08-05 | |||
| JPH1160541A | 1999-03-02 | |||
| JPH10259166A | 1998-09-29 | |||
| JPH10152455A | 1998-06-09 | |||
| JPH10109960A | 1998-04-28 | |||
| JPH10218842A | 1998-08-18 | |||
| JPH10152456A | 1998-06-09 | |||
| JPS57175147A | 1982-10-28 |
Foreign References:
| GB2280672A | 1995-02-08 |
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)